Datasheet

ECA 71 for the ECL Comfort 200/300 seriesData sheet
DH-SMT/DK
VD.KN.M1.02 © Danfoss 04/20062
Technical data
Storage temperature -40
o
C - 70
O
C
Ambient temperature
0 - 50
O
C
Installation Rear slot ECL Comfort controller
Module weight 12 g
Transceiver type RS 485 MODBUS
Communication speed 38.4 KB/s half duplex / 19.2 KB/s half duplex
Read performance Single parameter (PNU):
200 parameters/minute @ 19.2 KB/s
Compressed read:
up to 16 x 200/minute @ 19.2 KB/s
Network According to the standard Modbus Serial Line
Implementation Guide V1.0. See also the Danfoss data
sheet on SCADA systems (VD.KP.F1.02).
Pin connection
Pin 1 Network connection MODBUS B / DATA + / D1
Pin 2 (middle) Common / SGND
Pin 3 Network connection MODBUS A / DATA - / D0
Compatibility with optional
ECA modules
ECA 60-63 ECA 73 ECA 80 ECA 82 ECA 83 ECA 84 ECA 86 ECA 87 ECA 88
Yes Yes Yes No Yes No Yes No Yes
Max. 2 ECA modules can be connected.
Additional documentation for ECA 71 is available on http:/heating.danfoss.com
Pin location